Sallie Krawcheck was one of the most powerful women on Wall Street before she left her job as president of wealth management at Bank of America (BAC) in 2009.

These days she's helping to promote diversity in finance through a network of 30,000 female professionals, known as 85 Broads. (Krawcheck plans to change the name, which refers to the address of Goldman Sachs' former headquarters.)

Bill Ackman launched his latest attack against Herbalife on Friday, releasing a highly critical video about the company at an event in New York.

The billionaire hedge fund manager, who stands to gain $1 billion if Herbalife's (HLF) stock price collapses, unveiled the 13-minute video featuring interviews with former distributors who say they were victimized by the company.

Ackman, who spoke briefly at Friday's event, said his Pershing Square hedge fund is MORE

Ben Rooney is a staff writer for CNNMoney. He covers the European debt crisis and other international finance stories, in addition to writing about stocks, bonds, investing and other Wall Street-related news. Follow Ben on Twitter: @ben_rooney